Mitten follows the final weeks of rehearsals for Mitten wir im Leben sind, a performance by Anne Teresa De Keersmaeker, her company Rosas, and internationally renowned cellist Jean-Guihen Queyras, based on Johann Sebastian Bach’s six cello suites. The film offers a glimpse into Keersmaeker’s meticulous working process, as she builds a choreographic universe inspired by the study of musical composition. This intense creative process of continuous reshaping and refinement, marked by an unyielding pursuit of precision and detail, is captured through the patient lens of filmmakers Olivia Rochette and Gérard-Jan Claes, focusing on the work of the choreographer, the musician, and the dancers.